A dash cam captures a bunch of cars making a left when it is not a green for them. The car in front continues driving and crashes into one of the cars. After crashing, the car continues going and crashes into oncoming traffic

A biker crash occurs as he goes through a three-way intersection and gets clipped by a car head on. A biker crash is something that seems like it can always be avoided, but this biker crash was probably the cars fault. We can't blame every biker crash on the rider and his flimsy crotch rocket.